4.7 Article

CRISPR/Cas mediated genome editing in potato: Past achievements and future directions

Journal

PLANT SCIENCE
Volume 325, Issue -, Pages -

Publisher

ELSEVIER IRELAND LTD
DOI: 10.1016/j.plantsci.2022.111474

Keywords

CRISPR/Cas; Genome editing; Potato; Protoplast; Agrobacterium mediated transformation

Funding

  1. NSF Plant Genome Research Program [IOS-1758745, IOS-2029889]
  2. USDA-NIFA Biotechnology Risk Assessment Program [2020-3352232274]
  3. FFAR Crop of the Future Collaborative Program [21010111]
  4. USDA-AFRI Agricultural Innovations Through Gene Editing Program [2021-67013-34554]

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Genome engineering has revolutionized plant biotechnology and agriculture, and the use of gene editing techniques has made crop improvement easier, faster, and more precise. However, potato, an important crop for global food security, has not fully benefited from these techniques due to its unique genetic features. Genome editing provides a powerful tool for trait improvement in potato, but technical challenges and unexplored applications remain.
Genome engineering has been re-shaping plant biotechnology and agriculture. Crop improvement using the recently developed gene editing techniques is now easier, faster, and more precise than ever. Although considered to be a global food security crop, potato has not benefitted enough from diverse collection of these techniques. Unique genetic features of cultivated potatoes such as tetrasomic inheritance, high genomic heterozygosity, and inbreeding depression hamper conventional breeding of this important crop. Therefore, genome editing provides an excellent arsenal of tools for trait improvement in potato. Moreover, using specific transformation protocols, it is possible to engineer transgene free commercial varieties. In this review we first describe the past achievements in potato genome editing and highlight some of the missing aspects of these efforts. Then, we discuss about technical challenges of genome editing in potato and present approaches to overcome these difficulties. Finally, we talk about genome editing applications that have not been explored in potato and point out some of the missing venues in literature.

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